紊流

风力机风场模型的研究及紊流风场的MATLAB数值模拟

Wind turbine wind field models study and numerical simulation of turbulence wind field with MATLAB

采用轴对称的K～ε紊流数学模型，对减压试验中所采用的孔板泄洪洞的时均流场，特别是消能情况进行了数值模拟。

Simulate the time-averaged turbulent flow fields in the flood-discharge tunnel by using the axis-symmetric K turbulence mathematical model .

kεS紊流模型的应用

Application of the k - ε - s turbulent model

按N·S方程计算明渠扩展段紊流（回流）的第二次进展

Simulation of Turbulent Flow in Extended Section of Open Channel by Employing N. S Equations

当圆管半径R→∞时，即得到粗糙平板紊流边界层的计算式。

When radius of a pipe , R →∞, a formula for calculating the turbulent boundary layer of a rough plate is obtained .

采用直接求解雷诺平均N－S方程和标准k－ε紊流方程组的方法，模拟了方箱式双向进水流道内的流动。

The flow in a two-way suction box is computed by means of three dimensional Reynolds-averaged Navier-Stokes equations using the standard k - ε model .

本文引入水气两相流模型，用kε紊流数学模型模拟计算了阶梯溢流坝自由表面掺气的特征量。

By introducing air-water two phase flow model , this article uses k - ε turbulence model to calculate the characteristic variables of free-surface aeration on stepped spillway .

采用RNGk-ε模型对Ghost离心叶轮内三维紊流流动进行数值模拟。

The RNG k ε model was applied to study the turbulent flow in the Ghost impeller .

经量纲分析和圆管紊流理论分析表明流道内部流动的雷诺数Re对流道摩阻系数λ影响很小，可以忽略不计；

The results of dimension analysis and turbulent pipe flow theory showed that the Reynolds number Re had low effect on the flow path friction coefficient λ, which could be ignored .

本文采用kε紊流模型建立了冰盖流及物质输移的垂向二维数值模型，对封冻河道水流的垂向掺混特性及水中冰在冰盖下的输移规律进行了研究。

The κ - ε turbulence model is applied to establish the 2-D numerical model for studying vertical mixing characteristics of flow in ice-covered river and transportation of frazil-ice in water .

采用基于时均Navier-Stokes方程和标准k-ε紊流模型对得到的离心泵进行流场计算，并根据计算结果，对离心泵内部流场进行了分析；

Based on Navier-Stokes equation and k - ε turbulence model , the flow field of centrifugal pump is calculated .

虹吸式出水流道三维流动模拟的控制方程为雷诺平均Navier-Stokes方程，并以紊流模型使方程组闭合。

Control equations include Reynolds Navier-Stokes equation and turbulent model . The computation of near-wall flow has been conducted by wall-function .

采用紊流的Kε模型研究紊流流动现象，利用通度系数法处理计算域中的非直边界，对某钢铁公司氧枪喷头中冷却水的流动特性进行了模拟。

The flow behavior of cooling water in the oxygen lance of a steelmaking company was simulated based on K ε turbulence model . The porosity coefficient method was introduced to treat the curved boundary .

采用RNG（RenormalizationGroup）k-ε紊流模型对某环形燃烧室火焰筒内三维两相燃烧流场进行数值模拟。

RNG ( Renormalization Group ) k - ε turbulent model was applied to the numerical simulation of the three-dimensional two-phase combustion flow field in an annular combustor .

结果表明Realizablek-ε紊流模型可用于实际水工建筑物进水口漩涡的模拟。

The result show that realizable k - ε turbulence model can be used in the simulation of inlet whirlpool in hydraulic structures .

用DLR型κ-ε模型对逆压梯度内部紊流数值预测

Numerical Prediction of Inner Turbulent Flow with Adverse Pressure Gradient by Using DLR κ - ε Model

论紊流Couette流

On the Turbulent Couette Flow

应用有限体积法及BaldwinLomax紊流模型数值求解与时间相关的三维可压缩的薄层Navierstokes方程组。

The finite volume approach and the Baldwin-Lomax turbulent model were applied to numerically solve the unsteady three-dimensional thin-layer Navier-Stokes equations .

本文采用k-τ紊流模式求解完整的Reynolds方程，模拟了有坎宽顶堰自由堰流。

Based on the k - ε turbulent model , this paper presents the solution to the complete Reynolds equation , and successfully models the free weir flow of the broad-crest weir .

阐明了紊流携带模型的基本观点和相对携带量、分级粒度dr、溢流水量分配等主要参数的物理概念。

The basic idea about turbulence carrying model and the physical concepts for the main parameters , such as relative carrying capacity , separation size d r , distribution of overflowing water , have been delineated .

本文应用Prandtl半经验紊流理论，推导得到封冻河道水力要素间的理论关系表达式，并对冰盖影响区与床面影响区的交界位置进行了分析讨论；

The Prandtl semi-empirical turbulent theory is applied to deduce the expression of the relationship between the hydraulic factors of ice-covered rivers .

PIV激光片光源频闪技术拍摄的猝发系列照片生动展示了明渠紊流流场的猝发特性，可用于直接分析；

Based on the PIV laser sheet technology , and data processing technique and hydrogen bubble visualization serial pictures , the turbulent bursting process was vividly depicted by frequency flash photo .

根据FLUENT给出的三种紊流模型和压力速度耦合方法进行组合，选出一种较为合适可靠的翼型绕流计算方法。

There are three types of turbulence models and methods about coupling of pressure and speed are given in FLUENT , we will get a more suitable and reliable method for calculating the flow around airfoils .

分别采用RNGk-ε紊流模型和标准k-ε紊流模型对紊流特性进行模拟；

During the simulating process , RNG k - ε turbulence model and standard k - ε turbulence model are respectively adopted to simulate turbulent flow .

应用紊流的数学模型于抚钢的退火炉，该模型包括三维的紊流Navierstokes方程和kε两方程模型的紊流方程。

A mathematic model , which involves solution of the three dimensional turbulent Navier-stokes equation and turbulence being modeled by so called K - ε two equation model , is applied to the anneal - er .

气相采用Euler方法处理，并采用标准k-ε双方程紊流模型、EBU-Arrhenius紊流燃烧模型、六通量热辐射模型；

The gas phase equations were solved in a Euler frame of reference by the turbulent k - ε model and the EBU-Arrhenius turbulent combustion model .

本文以不可压缩粘性流体的Navier-Stokes方程和k-两方程紊流模型为基础，采用有限元方法求解了高速列车三维紊态外流场。

Based on Navier-Stokes equation and k - 2-equations turbulent model for incompressible viscous fluid , the 3D turbulent outside flow field around high-speed trains has been calculated by means of the finite element method .

用实验的方法验证了RNGkε紊流模型模拟厢式货车外部流场的计算精度明显高于标准kε紊流模型；

In this paper it was proved that the calculation precision of the outside flow field of the van body truck using RNG k ε turbulence model is higher than that using standard k ε turbulence model by means of experiments .

本文根据质量守恒定律、Fick第一扩散定律和Boussinesq假设导出了井巷污染物紊流传质的通用数学模型及纵向（？）

Develops a general mathematical model of the turbulent mass transfer of mine pollutant on the basis of mass conservation , Fick 's first law of diffusion and Boussinesq 's hypothesis .

文中采用VOF方法与标准k-ε紊流模型相耦合，对保水堰的流场进行了数值模拟，计算出了保水堰的局部水头损失系数。

By coupling VOF method and standard k - ε turbulence model , the flow field of water-keeping weir is simulated and the local head loss coefficient of water-keeping weir is obtained ;